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Steel and Composite Structures
  Volume 22, Number 3, October30 2016 , pages 691-712

Buckling analysis of nanocomposite cut out plate using domain decomposition method and orthogonal polynomials
M. Jamali, T. Shojaee, R. Kolahchi and B. Mohammadi

    In this editorial, buckling analytical investigation of the nanocomposite plate with square cut out reinforced by carbon nanotubes (CNTs) surrounded by Pasternak foundation is considered. The plate is presumed has square cut out in center and resting on Pasternak foundation. CNTs are used as amplifier in plate for diverse distribution, such as uniform distribution (UD) and three patterns of functionally graded (FG) distribution types of CNTs (FG-X, FG-A and FG-O). Moreover, the effective mechanical properties of nanocomposite plate are calculated from the rule of mixture. Domain decomposition method and orthogonal polynomials are applied in order to define the shape function of nanocomposite plate with square cut out. Finally, Rayleigh-Ritz energy method is used to obtain critical buckling load of system. A detailed parametric study is conducted to explicit the effects of the dimensions of plate, length of square cut out, different distribution of CNTs, elastic medium and volume fraction of CNTs. It is found from results that increase the dimensions of plate and length of square cut out have negative impact on buckling behavior of system but considering CNTs in plate has positive influence.
Key Words
    buckling analysis; nanocomposite plate; square cut out; domain decomposition method; orthogonal polynomials; Rayleigh-Ritz energy method
(1) M. Jamali, T. Shojaee, B. Mohammadi:
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran;
(2) R. Kolahchi:
Faculty of Mechanical Engineering University of Kashan, Kashan, Iran.

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